15. Simplify the expression cos (r)+cos²(r) tan²(r); (hint: you may write the expression in terms of sine and cosine only, then simplify).
15. Simplify the expression cos (r)+cos²(r) tan²(r); (hint: you may write the expression in terms of sine and cosine only, then simplify).
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
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![15. Simplify the expression cos (r)+cos²(x) tan²(x); (hint: you may write the expression
in terms of sine and cosine only, then simplify).
i) 1
ii) 2
iii) cot2(r)
iv) not listed](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F02ac992c-59f5-4674-9c6f-05ab0e575bae%2Fa0ea003e-5d6c-48b6-80bf-8e46b2827815%2F56shm2w_processed.png&w=3840&q=75)
Transcribed Image Text:15. Simplify the expression cos (r)+cos²(x) tan²(x); (hint: you may write the expression
in terms of sine and cosine only, then simplify).
i) 1
ii) 2
iii) cot2(r)
iv) not listed
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